/// <summary>
/// Get a <see cref="CrossList"/>, which contains the crossing points with
/// another curve?. The parameter param1 and param2 in <see cref="CrossItem"/> are converted to
/// a curve parameter.
/// </summary>
/// <param name="Curve"></param>
/// <returns></returns>
public CrossList GetCrossList(Curve Curve)
{
xyArray xyArray1 = new xyArray(this.Resolution + 1);
xyArray xyArray2 = new xyArray(Curve.Resolution + 1);
this.ToArray(xyArray1, 0);
Curve.ToArray(xyArray2, 0);
CrossList Result = xyArray1.getCrossList(xyArray2, true);
for (int i = 0; i < Result.Count; i++)
{
CrossItem C = Result[i];
C.Param1 = C.Param1 / this.Resolution;
C.Param2 = C.Param2 / Curve.Resolution;
}
return(Result);
}
/// <summary>
/// It`s the same as the overloaded method, but you can set, whether Tangential points
/// should be taken or not.
/// </summary>
/// <param name="value">An other CurveArray</param>
/// <param name="TangentialPoints">True, if the tangential points are taken</param>
/// <returns>A Crosslist</returns>
public CrossList getCrossList(CurveArray value, bool TangentialPoints)
{
ArrayList L1 = GetConnections();
ArrayList L2 = value.GetConnections();
int StartJ;
CrossList CL;
CrossList Result = new CrossList();
Result.AllowMultiCross = TangentialPoints;// for instant
int AIndex = 0;
for (int i = 0; i < L1.Count; i++)
{
CurveArray CA = (CurveArray)L1[i];
xyArray A = CA.getxyArray();
int BIndex = 0;
StartJ = 0;
for (int j = StartJ; j < L2.Count; j++)
{
CurveArray CB = (CurveArray)L2[j];
xyArray B = CB.getxyArray();
CL = A.getCrossList(B, TangentialPoints);
for (int k = 0; k < CL.Count; k++)
{
CrossItem CI = CL[k];
double aID = CA.xyArrayIndexToCurveArrayIndex(CI.Param1);
double bID = CB.xyArrayIndexToCurveArrayIndex(CI.Param2);
CI.Param1 = (float)AIndex + CA.xyArrayIndexToCurveArrayIndex(CI.Param1);
CI.Param2 = (float)BIndex + CB.xyArrayIndexToCurveArrayIndex(CI.Param2);
Curve C1 = CA[Utils.trunc(aID)];
Curve C2 = CB[Utils.trunc(bID)];
double Lam = CI.Param1 - Utils.trunc(CI.Param1);
double Mue = CI.Param2 - Utils.trunc(CI.Param2);
CI.Param1 = IndexOf(C1) + Lam;
CI.Param2 = value.IndexOf(C2) + Mue;
Mue = CI.Param2 - Utils.trunc(CI.Param2);
Lam = CI.Param1 - Utils.trunc(CI.Param1);
if (C1.Cross(C2, Lam, Mue, out Lam, out Mue))
{
if ((Lam < 0) && ((System.Math.Abs(Lam) < 0.000001)))
{
Lam = 0;
}
if (System.Math.Abs(Lam - 1) < 0.00001)
{
Lam = 0.999999;
}
CI.Param1 = Utils.trunc(CI.Param1) + Lam;
if ((Mue < 0) && ((System.Math.Abs(Mue) < 0.000001)))
{
Mue = 0;
}
if (System.Math.Abs(Mue - 1) < 0.00001)
{
Mue = 0.999999;
}
CI.Param2 = Utils.trunc(CI.Param2) + Mue;
}
else
{
Lam = 0;
if (C1.Equals(C2))
{
Lam = 1;
}
}
if ((Utils.trunc(CI.Param1) < 0) && (System.Math.Abs(CI.Param1) < 0.00001))
{
CI.Param1 = 0;
}
if ((Utils.trunc(CI.Param2) < 0) && (System.Math.Abs(CI.Param2) < 0.00001))
{
CI.Param2 = 0;
}
//if (((Utils.trunc(System.Math.Round(CI.Param1,3)) !=System.Math.Round(CI.Param1,3)))
// ||
// ((Utils.trunc(System.Math.Round(CI.Param1,3)) !=System.Math.Round(CI.Param1,3))))
Result.Add(CI);
}
BIndex += CB.Count;
}
AIndex += CA.Count;
}
return(Result);
}